Cellulose Nanocrystal-supported Sodium Alginate Adsorbent and Use Thereof in Enriching Organic Phosphorus in Wastewater
US-2022323932-A1 · Oct 13, 2022 · US
by heating
by heating · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F11/13 |
| Official title | by heating |
| Display label | by heating |
| Total patents | 112 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 12 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 4 |
| 2021 | 11 |
| 2022 | 11 |
| 2023 | 16 |
| 2024 | 18 |
| 2025 | 7 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for treatment of spent chloroaluminate ionic liquid catalyst and alkaline wastewater
US-11426702-B2 · Aug 30, 2022 · US
Domestic sewage treatment system
US-2022259087-A1 · Aug 18, 2022 · US
Metal ion recovery device, metal recovery system, and metal ion recovery method
US-2022152556-A1 · May 19, 2022 · US
Method for enhancing anaerobic digestion based on solid-liquid interface renewal in sludge
US-2022098073-A1 · Mar 31, 2022 · US
Hydrothermal treatment device, biomass fuel manufacturing plant, hydrothermal treatment method, and biomass fuel manufacturing method
US-11236001-B2 · Feb 1, 2022 · US
Disinfection apparatus and method of treating waste
US-2021346566-A1 · Nov 11, 2021 · US
Method and apparatus for direct drying of inorganic sludge with drum drawing process
US-2021347665-A1 · Nov 11, 2021 · US
Method for sludge dewatering using kitchen waste to synergistically enhance anaerobic biological acidification and low-temperature thermal hydrolysis of excess sludge
US-2021323888-A1 · Oct 21, 2021 · US
Energy-saving sludge drying disposal system
US-2021246059-A1 · Aug 12, 2021 · US
Hydrothermal treatment device, biomass fuel manufacturing plant, hydrothermal treatment method, and biomass fuel manufacturing method
US-2021230494-A1 · Jul 29, 2021 · US
System and method for reducing liquid discharge from one or more devices
US-10987626-B2 · Apr 27, 2021 · US
Preparation of a new type of composite anode and microbial fuel cell based on nitrogen doped biological carbon and porous volcanic rocks
US-10991967-B2 · Apr 27, 2021 · US
Sludge dewatering process assisted by flocculating reactant and plant for the implementation of such a process
US-10981820-B2 · Apr 20, 2021 · US
Biofilm carrier media in moving bed biofilm reactor processes
US-2021047204-A1 · Feb 18, 2021 · US
Method of treating sludge
US-2021024396-A1 · Jan 28, 2021 · US
Organic sludge treatment device and treatment method
US-2021009455-A1 · Jan 14, 2021 · US
Method and system for treatment of spent chloroaluminate ionic liquid catalyst and alkaline wastewater
US-2020392029-A1 · Dec 17, 2020 · US
High-moisture sludge ultra-fine synchronizing deep-drying device and a method thereof
US-2020308039-A1 · Oct 1, 2020 · US
Improved sludge dewatering process assisted by flocculating reactant and plant for the implementation of such a process
US-2020290911-A1 · Sep 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F11/13?
- CPC C02F11/13 is the Cooperative Patent Classification code for “by heating.”
- How many patents are filed under CPC C02F11/13 (by heating)?
- Our database includes 112 publications tagged with this CPC code.
- Is patent activity under CPC C02F11/13 growing?
- Publication counts under this code: 18 in 2024 vs 7 in 2025 (latest complete years).